The first year with a dog is a lot of work, but most will calm down and stop most of the behavior that is annoying, so long as you are consistent in training. Fred is now 17 months and he just seems to become a better dog every day. He is great company, very funny and well behaved. He is the 3rd dog i have had, and every one of them had become almost pure pleasure by the time they were 2. Of course, dogs will be dogs, and given the chance, most will steal food or drink your coffee when you look away.